Buy vs rent guide
Buy vs rent for couples and families
For couples and families, a buy vs rent decision is as much about stability and space as about money. This guide uses one illustrative household to show how the number of years you plan to stay, the down payment and ongoing home costs change the result.
An illustrative family household
Suppose a family compares a $750,000 home with renting a similar family-sized place at $2,800 a month. The assumptions: 20% down ($150,000), a 4.5% mortgage rate, a 25-year amortization, 3.5% yearly appreciation, 3% rent growth, 1% of home value each year for maintenance, and a 5.5% return on the renter's investments. These are planning inputs, not market data.
Closing costs bring the cash needed on day one to about $156,650. The first-month cost of owning is about $4,627, versus about $2,825 for renting. The gap, together with the unspent down payment, is what the renter is assumed to invest.
Property tax, home insurance, maintenance and extra utilities are included in the owner's number, not only the mortgage payment. If you have only calculated the mortgage payment, you are missing a large part of the cost. See hidden costs of owning.
Time horizon: the family advantage
A family that expects to stay for the school years is in a different position from a household that may move in three years. The table shows the result of the same example at three horizons.
| Years before selling | Buyer minus renter | Approx. break-even |
|---|---|---|
| 5 | +$1,358 | 5.5 years |
| 10 | +$52,299 | 5.5 years |
| 15 | +$113,146 | 5.5 years |
Which assumptions can reverse the result
Families should pay close attention to the two inputs that can flip the answer: maintenance and appreciation. Larger homes cost more to maintain, and appreciation is uncertain.
If maintenance is 1.5% of the home value each year instead of 1%, the buyer's 10-year lead disappears and the renter finishes ahead by $4,883. If appreciation is 2% instead of 3.5%, the renter finishes ahead by $73,933.
A smaller down payment changes the shape too. With 10% down on the same home, the buyer is still ahead after 10 years, by $26,567, but break-even moves to about 8 years because of the insurance premium of about $20,925 and the larger loan.
- Test a maintenance range, for example 1% to 1.5% of value, for an older or larger home.
- Test appreciation at a conservative level as well as the default.
- Check how a lower down payment changes the premium and the monthly payment.
The value of stability, and how to think about it
Stability is real but hard to price. A family that rents may face a non-renewal or a rent increase at a time when moving would disrupt school or work. A family that buys has more control over where they live, but has less cash on hand, and the home becomes the biggest asset on the balance sheet.
One way to respect both sides is to treat the calculation as a floor and a ceiling. If renting wins narrowly but you value staying in a neighbourhood for years, the non-financial value may justify buying. If buying wins narrowly but the family's finances are tight, the buffer that renting preserves may matter more.
Moving costs are an example. If the renting family moves every three years at about $3,500 a move, the calculator adds roughly $11,839 over 10 years and the buyer's lead rises to $66,933. Staying in one place for years has a measurable value.
Planning for the years ahead
Family circumstances change, so test the budget under stress. Check the payment at a higher rate at renewal, and check what would happen if household income fell for a year. Qualification uses a stress test at the greater of your contract rate plus 2 percentage points or 5.25%, which gives some cushion but not a guarantee.
Keep an emergency fund after the down payment and closing costs. Be realistic about child-related costs and be explicit about whether you will use RRSP, FHSA or other savings. Speak with a mortgage professional about your own numbers before making an offer.
Questions people ask
Do families need a bigger down payment?
Not necessarily. The minimum rules are the same for everyone, but a larger home price raises the required amount. A bigger down payment lowers the monthly payment and avoids insurance.
How long should a family stay for buying to make sense?
In the example here, break-even came at about 5.5 years, but a different price, rate or rent changes it. Run your own numbers for the time you realistically expect to stay.
What if one partner reduces their hours or takes leave?
Plan for it before buying by testing whether the payment and other housing costs are manageable on one income for a period. A mortgage professional can help with the details.
Should we rent while the kids are young and buy later?
It can make sense if the family is unsettled or short of savings. The cost is that you may face higher prices and rents later, so compare both paths in the calculator.
Official references
Educational information, not financial, tax, legal or mortgage advice. Rules and rates change; confirm current details with an official source or a qualified professional.